What is Database?

A database is a system used to store, organize, and manage data so it can be easily accessed and updated. It acts like a digital filing cabinet for applications.

Databases allow websites and apps to save information like user profiles, product details, messages, and more. Without a database, data would be lost every time an app is closed.

There are two main types of databases: relational (like MySQL and PostgreSQL) which store data in tables, and non-relational (like MongoDB) which store data in flexible document formats.

For example, when you sign up on a website, your name, email, and password are saved in a database so the system can recognize you later.

Databases are essential in almost every software project because they ensure data can be stored safely, queried efficiently, and updated in real-time.